Performance Monitoring

Definitions

1. The ongoing collection, aggregation, and alerting on system and application performance metrics — such as response latency, throughput, error rates, and resource utilization — using tools like Datadog, New Relic, Prometheus, or Grafana to detect degradations before they impact users.

   In plain English: Continuously watching how fast and reliably your software is running, and getting alerts when something starts slowing down.

   Example: "Performance monitoring caught a P99 latency spike on the payments endpoint at 3 AM, so we rolled back the deploy before peak traffic."

Related Terms

• Nginx
• DNS
• Load Balancer
• CDN
• Log Aggregation
• Log Level
• Mirror
• Package Registry
• Blue-Green